Weight in physics is known to be the gravitational force which Earth exerts on you. In order to express weight in a formula, you need to use w=mg. Of course, it is not only gravity that will determine the type of weight that you have on earth. It follows that the heavier that you are, the heavier your weight is also going to be.
The weight of people will be different depending on where they are. People are expected to weigh less when they are on the moon or maybe even in other planets along the solar system. Take note that mass is different from weight even in physics.